of all things, why was david mccullough suffering from insomnia? i thought he was joking when h told me this. at first i said, no, no, no. he said i ith politicians all of the time, which he he did. and he said, i speak all time colleges, universities, schools. and he said, it concerns me very, very deeply that it's not just the rising generation of young americans who don't know our history, don't know our constitution who don't know our culture. they don't know our american story. and as i was researching my book, i found out a very important i think, comment from doctor who said, i'm quoting it. he said, every day, as mccullough reads the papers, he said, it seems as if leaders are taking positions based politics and have forgotten about history, he said they, are unaware of the past and in how they will be remembered in the future that seems timely, topical and relevant, doesn't it. lincoln said that it's not enough to assert he was a euclidean, and he said over and again you have to demonstrate. but i think it's what made him a great litigator